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Challenge of Reverse Engineering

Try a challenge or contribute your own, any platform or operating system...

The creation of new topics is disabled in these subforum categories.

Please create and post your new challenges in the appropriate subcategory of Downloads > Challenge of Reverse Engineering

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  1. SuperJackAbcd
    CrackMe · Started by SuperJackAbcd,

    Simple C++/CLI Crackme x64bit Your goal is to crack the file and make a tutorial and/ or write instructions about the steps done by you. What is C++/CLI? C++/CLI is C++ support .NET framework to make managed application run on .NET framework. https://en.wikipedia.org/wiki/C%2B%2B/CLI Feel free to post your solutions. File Information Submitter SuperJackAbcd Submitted 01/26/2022 Category CrackMe View File

  2. m0rfl1ng
    CrackMe · Started by m0rfl1ng,

    My first easy CrackMe Hi guys , i write a very simple crack me , i really do not know how i should secure my code just write a very basic one . anyway i know it's very easy but still wanted to know other peoples opinion. if it did not run please let me know , i did not use any packer , or protector , just my own code , and it's written in C++ with visual studio 2019 on windows 10. Submitter: m0rfl1ng Category: CrackMe Virus Total Scan File Information Submitter m0rfl1ng Submitted 11/28/2020 Category CrackMe View File

  3. vietnguyen09
    UnPackMe (.NET) · Started by vietnguyen09,

    SmartAssembly 7 SmartAssembly 7 full encryption options with a few tricky class inside source code. When you enter license key correctly, a messenger with the Success!!! will show. Good luck. File Information Submitter vietnguyen09 Submitted 04/14/2021 Category UnPackMe (.NET) View File

      • Like
    • 6 replies
    • 22.5k views
  4. MulaB
    UnPackMe (.NET) · Started by MulaB,

    Difficulty : 8 Language : VB.NET (.NET) Platform : Windows OS Version : Windows 7, Windows 8, Windows 10 Packer / Protector : Agile.net ( Full Version with Virtualization ) Description : if u click on the "try" button the tool will check if the entered text in the textbox is correct. What u need to do is unpack the tool and get the password. Screenshot : Secured.rar Secured.rar

  5. Twaoperder
    CrackMe · Started by Twaoperder,

    Custom Protector CrackMe It is written in FASM, anti-debugging methods are used. You need to get the keys that were used to encrypt the hash being checked (Enter the necessary values in the input field to get "Success", and throw these values here) File Information Submitter Twaoperder Submitted 08/21/2021 Category CrackMe View File

  6. svenskithesource
    CrackMe · Started by svenskithesource,

    Python Patchme (Custom VM) (UPDATED v1.2) Hello, Since the use of vm's is quite popular in .net obfuscation I thought it would be interesting to make one in Python. Hereby I release my first crackme using my VM. It's a very simple VM so it shouldn't be that hard to reverse with the right knowledge. This is purely experimental to see if it would be useful somehow. I also used my own protector that adds cflow, so expect to see a lot of jumps. Goal: Patch it (ultimately devirtualize it, but that's not necessary) EDIT: This is now updated. I tried to make sure it isn't possible to patch with 1 or 2 jumps. File Information …

      • Like
      • Thanks
    • 5 replies
    • 6.2k views
    Extreme Coders
    Extreme Coders
  7. 2Face
    UnPackMe (.NET) · Started by 2Face,

    Crypto Obfuscator + IntelliLock (Hard) 1- Crypto obfuscator Fake Name Method Hide Calls Encrypt Strings Code Masking 2- IntelliLock Max Settings If you unpack this tell us how you did it and what programs you used. File Information Submitter 2Face Submitted 09/11/2020 Category UnPackMe (.NET) View File

  8. aslan4747
    UnPackMe (.NET) · Started by aslan4747,

    Language : .NET Platform : Windows OS Version : All Packer / Protector :.net reactor 6.2.0.0 demo version Description : I tried all methods but cant unpacked sharing here for you guys try Screenshot : unpackme .rar

  9. whoknows
    UnPackMe (.NET) · Started by whoknows,

    CryptoObfuscator v2020.200911 Try to unpack or alternatively provide a serial. Protections used: Code Virtualization Rename Symbols Reduce Metadata Mark Classes as Final + Shield with SNK File Information Submitter whoknows Submitted 12/15/2020 Category UnPackMe (.NET) View File

  10. whoknows
    UnPackMe (.NET) · Started by whoknows,

    .NET Reactor v6.3 Try to unpack or alternatively provide a serial. Protections used: Necrobit Antitampering Antidebug Obfuscation Code Virtualization + Shield with SNK File Information Submitter whoknows Submitted 06/10/2020 Category UnPackMe (.NET) View File

  11. Inx
    UnPackMe (.NET) · Started by Inx,

    Inx .NET Protector Hey, I just made my own protector. I modified my own version of ConfuserEx and improved it and made it stronger so I want to know if it is good or not? Please try to unpack it and tell me, thanks ♥ All Rights Reserved To Inx. File Information Submitter Inx Submitted 07/17/2021 Category UnPackMe (.NET) View File

    • 1 reply
    • 7.6k views
  12. lovejoy226
    KeygenMe · Started by lovejoy226,

    Sean's KeyGenMe Crack and keygen this for training your skills. It is protected with ConfuserEx using some anti tricks. Write a tutorial and document the methods used in your solution. My Anti-virus engine detects it's a virus, but it's not. File Information Submitter lovejoy226 Submitted 01/24/2022 Category KeygenMe View File

  13. BETA
    UnPackMe (.NET) · Started by BETA,

    ClickMe Custom Protector I have been working on modifying and creating new protections for the past few months. Here is an unfinished UnPackMe sample. File Information Submitter BETA Submitted 04/01/2022 Category UnPackMe (.NET) View File

  14. vasterajontek
    UnPackMe (.NET) · Started by vasterajontek,

    Language : VB.NET Platform : Windows OS Version : All Packer / Protector : ArmDot (2020.2) Description : unpack and crack and tell how fast did you unpack or crack it and the way if possible Screenshot : Download: UnpackMe.protected.rar

  15. Nqndi
    CrackMe · Started by Nqndi,

    Titanium (Python Obfuscator) This is my first crackme, so I may have screwed up some things, but overall it should be a fun challenge. The file is protected with my own packer/obfuscator, Titanium, and compiled with pyinstaller. Read the readme before reversing. File Information Submitter Nqndi Submitted 09/07/2021 Category CrackMe View File

  16. delldell
    UnPackMe · Started by delldell,

    VMProtect , ZProtect = Mix UnpackMe = Delphi 7 Have Fun delldell_UnpackMe_VMProtect_ZProtect.rar

  17. cypher
    UnPackMe · Started by cypher,

    Hey guys, while testing ScyllaHide with current protectors I made this little exe. Its Obsidium v1.5 DEMO. Enabled protection options include "Remove Bytes at OEP", "API emulation", "Verify file size", "Encrypt resources" Unpack this and share NOTEPAD_obsidium_v1.5.rar

  18. BlackHat
    UnPackMe (.NET) · Started by BlackHat,

    ArmDot 2022.1.0 [Maximum Preset Including VM] Your goal is to devirtualize and unpack the file completely; No partial unpack, No patching. File Information Submitter BlackHat Submitted 01/16/2022 Category UnPackMe (.NET) View File

  19. arsh3
    CrackMe · Started by arsh3,

    GalaxyProtector Provide a key and send a cleaned executable. File Information Submitter arsh3 Submitted 07/13/2021 Category CrackMe View File

  20. Blue
    KeygenMe · Started by Blue,

    Language : C++ Platform : Windows, 32/64 bit OS Version : Windows 10 Packer / Protector : None Description : Hey all, Here's a new challenge for everyone interested to learn things, I am sure you guys will surely find this interesting. some rules for this challenge code a valid keygen which can generate multiple valid serial for a given name no code ripping from the keygenme challenge is allowed if you are able to fish a valid serial, please post that too with a little tutorial. That will be accepted as a valid solution 😉 top winners will be awarded the source code @kao I hope that you will attempt this keygen me …

  21. tarequl.hassan
    KeygenMe · Started by tarequl.hassan,

    Keygenme MT01 Hi I got this keygenme in my hard drive, this is from CIN1TEAM and created by MR. Teo. Thought this might help someone to test his keygenning skill. Thanks File Information Submitter tarequl.hassan Submitted 03/08/2021 Category KeygenMe View File

  22. johnfkingzton
    KeygenMe · Started by johnfkingzton,

    My First App 001 Provide a valid pair of name and serial, or write a keygen. Good luck. File Information Submitter johnfkingzton Submitted 03/10/2021 Category KeygenMe View File

  23. whoknows
    KeygenMe · Started by whoknows,

    http://www7.zippyshare.com/v/uN2Kwuo0/file.html'>>http://www7.zippyshare.com/v/uN2Kwuo0/file.html -kao exclude (he solved v3) -keygen only -author set, limit of runs (by native protection) kg4.rar

  24. lovejoy226
    KeygenMe · Started by lovejoy226,

    Sean's KeyGenMe - Simple Tricks I coded a keygenme, simple tricks. I hope you enjoy your time trying to solve this! File Information Submitter lovejoy226 Submitted 12/31/2021 Category KeygenMe View File

  25. Greedy_Fly
    KeygenMe · Started by Greedy_Fly,

    Hi... All !!! ... Try It! Level - ? (Tell me if you know) Rules: Only Keygen, Not Patching, Not Serial Fishing... ------------------------------------------------------------------------ Greedy_Fly KeygenMe.zip

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